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[GH-ISSUE #299] [LGSM] Support RCON for applicable games #258

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opened 2026-02-27 02:00:26 +03:00 by kerem · 15 comments

kerem commented

2026-02-27 02:00:26 +03:00

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Originally created by @Montclair on GitHub (Feb 25, 2015).
Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/299

Originally assigned to: @dgibbs64, @UltimateByte on GitHub.

When using the gsquery.py plugin to monitor a server, it causes the server to restart when it's not really crashed. This happens when we load a config that uses sv_cheats 1. It's a practice config called L2L Config, not that that's of any importance. It's the sv_cheats 1 that's the issue (I and others in the community believe).

Specifically, when the server is running in this mode, it is not responsive to status queries, thus, gsquery.py thinks the server has crashed when it has not, and causes it to restart. I've checked the logs and verified it:

Feb 24 21:00:02 l4d2-server3: Monitor: Checking session: CHECKING
Feb 24 21:00:03 l4d2-server3: Monitor: Checking session: OK
Feb 24 21:00:04 l4d2-server3: Monitor: Detected gsquery.py
Feb 24 21:00:05 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : QUERYING
Feb 24 21:00:11 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : ERROR: Unable to receive
Feb 24 21:00:12 l4d2-server3: Monitor: Waiting 30 seconds to re-query
Feb 24 21:00:42 l4d2-server3: Monitor: Detected gsquery.py
Feb 24 21:00:43 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : QUERYING
Feb 24 21:00:49 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : ERROR: Unable to receive
Feb 24 21:00:50 l4d2-server3: Restarting:
Feb 24 21:00:50 l4d2-server3: Stopping:
Feb 24 21:00:51 l4d2-server3: Stopping: Stopped
Feb 24 21:00:52 l4d2-server3: Starting:
Feb 24 21:00:53 l4d2-server3: Starting: Rotating log files

I'm asking others in the L4D community if there's a system variable or file that gets created that I could check for existence and perhaps modify your script to abort the call. But I wanted to put this out there to you in case you possibly had a fix or an idea.

Servers that support RCON

7 days to die
Rust
Source engine

Originally created by @Montclair on GitHub (Feb 25, 2015). Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/299 Originally assigned to: @dgibbs64, @UltimateByte on GitHub. When using the gsquery.py plugin to monitor a server, it causes the server to restart when it's not really crashed. This happens when we load a config that uses sv_cheats 1. It's a practice config called L2L Config, not that that's of any importance. It's the sv_cheats 1 that's the issue (I and others in the community believe). Specifically, when the server is running in this mode, it is not responsive to status queries, thus, gsquery.py thinks the server has crashed when it has not, and causes it to restart. I've checked the logs and verified it: Feb 24 21:00:02 l4d2-server3: Monitor: Checking session: CHECKING Feb 24 21:00:03 l4d2-server3: Monitor: Checking session: OK Feb 24 21:00:04 l4d2-server3: Monitor: Detected gsquery.py Feb 24 21:00:05 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : QUERYING Feb 24 21:00:11 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : ERROR: Unable to receive Feb 24 21:00:12 l4d2-server3: Monitor: Waiting 30 seconds to re-query Feb 24 21:00:42 l4d2-server3: Monitor: Detected gsquery.py Feb 24 21:00:43 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : QUERYING Feb 24 21:00:49 l4d2-server3: Monitor: Querying port: 104.207.128.135:27017 : ERROR: Unable to receive Feb 24 21:00:50 l4d2-server3: Restarting: Feb 24 21:00:50 l4d2-server3: Stopping: Feb 24 21:00:51 l4d2-server3: Stopping: Stopped Feb 24 21:00:52 l4d2-server3: Starting: Feb 24 21:00:53 l4d2-server3: Starting: Rotating log files I'm asking others in the L4D community if there's a system variable or file that gets created that I could check for existence and perhaps modify your script to abort the call. But I wanted to put this out there to you in case you possibly had a fix or an idea. Servers that support RCON - 7 days to die - Rust - Source engine

kerem

2026-02-27 02:00:26 +03:00

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kerem commented

2026-02-27 02:00:27 +03:00

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@dgibbs64 commented on GitHub (Feb 25, 2015):

If the server is not responsive to status queries gsquery cannot function as it requires this to monitor and will assume the server is offline. I recommend deleting gsquery unless you can get the query port working on the server.

@dgibbs64 commented on GitHub (Feb 25, 2015): If the server is not responsive to status queries gsquery cannot function as it requires this to monitor and will assume the server is offline. I recommend deleting gsquery unless you can get the query port working on the server.

kerem commented

2026-02-27 02:00:27 +03:00

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@Montclair commented on GitHub (Feb 27, 2015):

According to other sysops, Left 4 Dead 2's server will never respond to the type of connect you're doing when cheats are enabled. This may be true of other Source servers as well, but of that I'm not sure.

Is there not some way for you to query the server using rcon? SourceBans (a php based server banning tool, for example) performs rcon queries to check a server and actually get current game info.

python-valve is a Python library which aims to provide the ability to interface with various Valve services and products, including: the Steam web API, locally installed Steam clients, Source servers and the Source master server. Here is documentation on how to use the rcon tool from that ibrary: http://python-valve.readthedocs.org/en/latest/rcon.html.

If you want to do it in bash, here is another script: https://gist.github.com/mbasaglia/62d7fef83304f4b3ca90

Example usage:
./rcon.sh -host=localhost:26000 -pw=password -secure=2 -c status 1

@Montclair commented on GitHub (Feb 27, 2015): According to other sysops, Left 4 Dead 2's server will never respond to the type of connect you're doing when cheats are enabled. This may be true of other Source servers as well, but of that I'm not sure. Is there not some way for you to query the server using rcon? SourceBans (a php based server banning tool, for example) performs rcon queries to check a server and actually get current game info. python-valve is a Python library which aims to provide the ability to interface with various Valve services and products, including: the Steam web API, locally installed Steam clients, Source servers and the Source master server. Here is documentation on how to use the rcon tool from that ibrary: http://python-valve.readthedocs.org/en/latest/rcon.html. If you want to do it in bash, here is another script: https://gist.github.com/mbasaglia/62d7fef83304f4b3ca90 Example usage: ./rcon.sh -host=localhost:26000 -pw=password -secure=2 -c status 1

kerem commented

2026-02-27 02:00:27 +03:00

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@dgibbs64 commented on GitHub (Mar 21, 2015):

This may be worth me doing at some point. It may be of benefit to get the script to send rcon commands to the server. However this would be an enhancement I will look at then I have time.

@dgibbs64 commented on GitHub (Mar 21, 2015): This may be worth me doing at some point. It may be of benefit to get the script to send rcon commands to the server. However this would be an enhancement I will look at then I have time.

kerem commented

2026-02-27 02:00:27 +03:00

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@UltimateByte commented on GitHub (Jan 23, 2016):

While this is a great idea, it wouldn't work in any case. For example, i disable rcon by not setting a password on my servers as soon of possible for security reasons.

@UltimateByte commented on GitHub (Jan 23, 2016): While this is a great idea, it wouldn't work in any case. For example, i disable rcon by not setting a password on my servers as soon of possible for security reasons.

kerem commented

2026-02-27 02:00:27 +03:00

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@Montclair commented on GitHub (Jan 25, 2016):

It wouldn't work for you, I think you mean. I'd still like to see this implemented.

@Montclair commented on GitHub (Jan 25, 2016): It wouldn't work for you, I think you mean. I'd still like to see this implemented.

kerem commented

2026-02-27 02:00:27 +03:00

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@UltimateByte commented on GitHub (Jan 25, 2016):

I'm not against he idea, i just mean that we can't only rely on it as it doesn't work 100%of the time.

@UltimateByte commented on GitHub (Jan 25, 2016): I'm not against he idea, i just mean that we can't only rely on it as it doesn't work 100%of the time.

kerem commented

2026-02-27 02:00:27 +03:00

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@Montclair commented on GitHub (Jan 25, 2016):

Right, but neither does the current method. A combination of the current method, and / or fallback to this method would be an ideal solution.

@Montclair commented on GitHub (Jan 25, 2016): Right, but neither does the current method. A combination of the current method, and / or fallback to this method would be an ideal solution.

kerem commented

2026-02-27 02:00:27 +03:00

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@UltimateByte commented on GitHub (Jan 25, 2016):

Agreed since my first remark, i was just warning : Don't rely ONLY on rcon querying after implementing it ! Even : Find a way to detect if it's enabled before !

@UltimateByte commented on GitHub (Jan 25, 2016): Agreed since my first remark, i was just warning : Don't rely ONLY on rcon querying after implementing it ! Even : Find a way to detect if it's enabled before !

kerem commented

2026-02-27 02:00:27 +03:00

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@UltimateByte commented on GitHub (Jan 19, 2017):

Some insight about an rcon script:
http://steamcommunity.com/groups/linuxgsm/discussions/0/144513670981268947/?tscn=1484856066
Source: http://www.ark-survival.net/en/2015/07/09/rcon-tutorial/
Full script: https://www.ryanschulze.net/archives/1052

@UltimateByte commented on GitHub (Jan 19, 2017): Some insight about an rcon script: http://steamcommunity.com/groups/linuxgsm/discussions/0/144513670981268947/?tscn=1484856066 Source: http://www.ark-survival.net/en/2015/07/09/rcon-tutorial/ Full script: https://www.ryanschulze.net/archives/1052

kerem commented

2026-02-27 02:00:27 +03:00

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@UltimateByte commented on GitHub (Feb 23, 2017):

For Rust:
https://github.com/dcodeIO/WebRcon

@UltimateByte commented on GitHub (Feb 23, 2017): For Rust: https://github.com/dcodeIO/WebRcon

kerem commented

2026-02-27 02:00:28 +03:00

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@UltimateByte commented on GitHub (Feb 23, 2017):

Ideas on how to use RCON:

Open an RCON prompt with a command ./gameserver rcon-console
Monitor the server
Send alerts before server restart upon updates

@UltimateByte commented on GitHub (Feb 23, 2017): Ideas on how to use RCON: 1) Open an RCON prompt with a command ./gameserver rcon-console 2) Monitor the server 3) Send alerts before server restart upon updates

kerem commented

2026-02-27 02:00:28 +03:00

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@dgibbs64 commented on GitHub (Oct 28, 2019):

The query will wait up to 60 seconds before triggering a reboot this has worked in preventing a server being restarting during a map change. Also a planned "send" command for servers that support entering commands into the console.

Part of this will need to be confirming which servers can use send and which can use RCON. send would be the priority and rcon secondary.

@dgibbs64 commented on GitHub (Oct 28, 2019): The query will wait up to 60 seconds before triggering a reboot this has worked in preventing a server being restarting during a map change. Also a planned "send" command for servers that support entering commands into the console. Part of this will need to be confirming which servers can use send and which can use RCON. send would be the priority and rcon secondary.

kerem commented

2026-02-27 02:00:28 +03:00

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@sarahsturgeon commented on GitHub (Oct 28, 2019):

Garry's Mod would benefit from rcon commands - especially when doing things like running stop. The way we pipe stuff into tmux right now isn't super reliable and could be avoided by using rcon. (This would also be a great way to query the server to decide if the server is actually running, as I believe the server can respond to status requests even while changing maps)

@sarahsturgeon commented on GitHub (Oct 28, 2019): Garry's Mod would benefit from rcon commands - especially when doing things like running `stop`. The way we pipe stuff into tmux right now isn't super reliable and could be avoided by using rcon. (This would also be a great way to query the server to decide if the server is actually running, as I believe the server can respond to status requests even while changing maps)

kerem commented

2026-02-27 02:00:28 +03:00

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@dgibbs64 commented on GitHub (Oct 20, 2023):

RCON support is choppy at best and varies greatly depending on the game server. Supporting a few game servers that all work very differently is a massive use of dev time. I don't see adding rcon support as viable unless there is a module similar to gamedig that is well supported (there are a few projects that seem pretty dead).

@dgibbs64 commented on GitHub (Oct 20, 2023): RCON support is choppy at best and varies greatly depending on the game server. Supporting a few game servers that all work very differently is a massive use of dev time. I don't see adding rcon support as viable unless there is a module similar to gamedig that is well supported (there are a few projects that seem pretty dead).

kerem commented

2026-02-27 02:00:28 +03:00

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@github-actions[bot] commented on GitHub (Oct 21, 2024):

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

@github-actions[bot] commented on GitHub (Oct 21, 2024): This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.